Size Range: DN15–DN300
Pressure Range: PN6–PN16
End Connection: Flanged, Threaded, or Socket Weld
Material: Ductile Iron or Carbon Steel Body with PTFE/FEP Lining
Seals: Fluorine-Lined EPDM or PTFE Diaphragm
Valves Design: Straight-through or Weir-Type Body Design
Face to Face: ISO 5752 / DIN EN 558
End Connection: ASME B16.5, EN 1092-1
Testing & Inspection: API 598, ISO 5208
Suitable Medium: Acidic, Alkaline, Corrosive, and High-Purity Fluids
The Fluorine-Lined Diaphragm Valve is specially designed for managing highly corrosive and abrasive media. With its fluorine-lined body and diaphragm, it offers excellent chemical resistance and contamination-free operation. Its versatile design allows for easy installation and maintenance, making it an ideal choice for chemical processing, pharmaceuticals, and water treatment applications.
| No. | Part Name | Grey Cast Iron (Z) | Carbon Steel (C) | Stainless Steel (P) | Stainless Steel (R) | Low Carbon Stainless Steel (Pₗ) | Low Carbon Stainless Steel (Rₗ) |
|---|---|---|---|---|---|---|---|
| 1 | Body, cover, disc | HT250 | WCB | CF8 | CF8M | CF3 | CF3M |
| 2 | Disc stem | 35 | 1Cr13 | 1Cr18Ni9 | 1Cr18Ni12Mo2Ti | 00Cr18Ni10 | 00Cr17Ni14Mo2 |
| 3 | Lining layer | FEP (F46) / PFA (Soluble PTFE) / PCTFE (F3) / PO (Polyolefin) | |||||
| 4 | Diaphragm | FEP (F46) / CR (Neoprene) / PFA (Soluble PTFE) / FPDM (EPDM) | |||||
| 5 | Stem nut | ZCuAl10Fe3 | |||||
| 6 | Bolt | 35 | 35 | 1Cr17Ni2 | 1Cr17Ni2 | 1Cr17Ni2 | 1Cr18Ni9Ti |
| 7 | Nut | 45 | 45 | 0Cr18Ni9 | 0Cr18Ni9 | 0Cr18Ni9 | 0Cr18Ni9 |
| 8 | Hand wheel | HT200 | HT200 | WCC | WCC | WCC | WCC |
Standard Value (PN0.6MPa/PN1.0MPa)
| DN (mm) | NPS (inch) | L | D | D1 | D2 | f | b | Z–Φd | D0 | H1 | H2 | Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 15 | 1/2 | 125 | 95 | 65 | 45 | 2 | 14 | 4–Φ14 | 120 | 105 | 110 | 3.5 |
| 20 | 3/4 | 135 | 105 | 75 | 55 | 2 | 16 | 4–Φ14 | 120 | 105 | 125 | 4 |
| 25 | 1 | 145 | 115 | 85 | 65 | 2 | 16 | 4–Φ14 | 120 | 120 | 135 | 5 |
| 32 | 1-1/4 | 160 | 135 | 100 | 78 | 2 | 18 | 4–Φ18 | 140 | 125 | 150 | 8 |
| 40 | 1-1/2 | 180 | 145 | 110 | 85 | 3 | 20 | 4–Φ18 | 140 | 140 | 180 | 12 |
| 50 | 2 | 210 | 160 | 125 | 100 | 3 | 20 | 4–Φ18 | 140 | 155 | 195 | 14 |
| 65 | 2-1/2 | 250 | 180 | 145 | 120 | 3 | 22 | 4/8–Φ18 | 200 | 200 | 255 | 29 |
| 80 | 3 | 300 | 195 | 160 | 135 | 3 | 22 | 8–Φ18 | 200 | 200 | 255 | 29 |
| 100 | 4 | 350 | 215 | 180 | 155 | 3 | 24 | 8–Φ18 | 280 | 270 | 325 | 46 |
| 125 | 5 | 400 | 245 | 210 | 185 | 3 | 26 | 8–Φ23 | 300 | 340 | 410 | 75 |
| 150 | 6 | 460 | 280 | 240 | 210 | 3 | 28 | 8–Φ23 | 400 | 400 | 560 | 105 |
| 200 | 8 | 570 | 335 | 295 | 265 | 3 | 28 | 8–Φ23 | 400 | 480 | 600 | 170 |
| 250 | 10 | 680 | 390 | 350 | 320 | 3 | 30 | 12–Φ23 | 480 | 565 | 800 | 240 |
| 300 | 12 | 790 | 440 | 400 | 368 | 4 | 32 | 12–Φ25 | 500 | 585 | 680 | 320 |
| DN (mm) | NPS (inch) | L | D | D1 | D2 | f | b | Z–Φd | D0 | H1 | H2 | Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 15 | 1/2 | 125 | 95 | 65 | 45 | 2 | 14 | 4–Φ14 | 120 | 110 | 115 | 4 |
| 20 | 3/4 | 135 | 105 | 75 | 55 | 2 | 16 | 4–Φ14 | 120 | 125 | 140 | 5 |
| 25 | 1 | 145 | 115 | 85 | 65 | 2 | 16 | 4–Φ14 | 140 | 130 | 155 | 9 |
| 32 | 1-1/4 | 160 | 135 | 100 | 78 | 2 | 18 | 4–Φ18 | 140 | 140 | 180 | 12 |
| 40 | 1-1/2 | 180 | 145 | 110 | 85 | 3 | 20 | 4–Φ18 | 160 | 155 | 200 | 15 |
| 50 | 2 | 210 | 160 | 125 | 100 | 3 | 20 | 4–Φ18 | 160 | 200 | 255 | 24 |
| 65 | 2-1/2 | 250 | 180 | 145 | 120 | 3 | 22 | 8–Φ18 | 200 | 275 | 305 | 39 |
| 80 | 3 | 300 | 195 | 160 | 135 | 3 | 22 | 8–Φ18 | 280 | 275 | 330 | 48 |
| 100 | 4 | 350 | 215 | 180 | 155 | 3 | 24 | 8–Φ18 | 320 | 340 | 410 | 75 |
| 125 | 5 | 400 | 245 | 210 | 185 | 3 | 26 | 8–Φ23 | 320 | 400 | 470 | 105 |
| 150 | 6 | 460 | 280 | 240 | 210 | 3 | 28 | 8–Φ23 | 400 | 485 | 605 | 182 |
| 200 | 8 | 570 | 335 | 295 | 265 | 3 | 30 | 12–Φ23 | 500 | 550 | 625 | 295 |
| 300 | 12 | 790 | 440 | 400 | 375 | 4 | 34 | 12–Φ25 | 500 | 590 | 685 | 345 |
Chemical Industry: Handling strong acids, alkalis, and corrosive solutions.
Pharmaceutical Manufacturing: Suitable for clean and sterile environments.
Water Treatment Plants: Effective in processing and distributing treated water.
Food and Beverage: Meets hygienic requirements for sensitive processes.
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